HTML & XHTML Pocket Reference, 4th Edition

Name

button — HTML 4.01 | HTML5

Synopsis

<button> . . . </button>

Used as part of a form, defines a “button” that functions similarly to buttons created with the input element but allows for richer rendering possibilities. Buttons can contain content such as text and images (but not image maps).

Start/End Tags

Required/Required

Attributes

Core, Internationalization, Events, Focus, HTML5 Global Attributes

autofocus (autofocus="autofocus" in XHTML)

HTML5 only. Indicates the control should have focus (be highlighted and ready for user input) when the document loads.

disabled (disabled="disabled" in XHTML)

Disables the control for user input. It can be altered only via a script. Browsers may display disabled controls differently (grayed out, for example), which could be useful for dimming certain controls until required info is supplied.

form="id of the form owner"

HTML5 only. Explicitly associates the input control with its associated form (its form owner). With this method, the input control does not need to be a child of the form element that applies to it.

formaction="URL"

HTML5 only. Specifies the application that will process the form. It is used only with a submit button (input type="submit") and has the same function as the action attribute for the form element.

formenctype="content type"

HTML5 only. Specifies how the form values are encoded with the post method type. It is used only with a submit button (input type="submit") and has the same function as the enctype attribute for the form element. ...